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LM3500TL-16 Fiches technique(PDF) 11 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce LM3500TL-16
Description  Synchronous Step-up DC/DC Converter for White LED
Download  18 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3500TL-16 Fiches technique(HTML) 11 Page - National Semiconductor (TI)

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Typical Performance Characteristics (Continued)
Start-Up: LM3500-21
SHDN Pin Duty Cycle Control Waveforms
20065796
3 LEDs, RLED =22Ω,VIN = 3.0V
1) SHDN, 1V/div, DC
4) IL, 100mA/div, DC
2) VOUT, 10/div, DC
T = 200µs/div
VCONT = 2.7V
20065772
LM3500-16, 3 LEDs, RLED =22Ω,VIN = 3.0V, SHDN frequency = 200Hz
1) SHDN, 1V/div, DC
2) IL, 100mA/div, DC
3) ILED, 20mA/div, DC
4) VOUT, 10V/div, DC
T = 1ms/div
Typical V
OUT Ripple, OVP Functioning: LM3500-16
Typical V
OUT Ripple, OVP Functioning: LM3500-21
20065782
VOUT open circuit and equals approximately 15V DC, VIN = 3.0V
3) VOUT, 200mV/div, AC
T = 1ms/div
20065797
VOUT open circuit and equals approximately 20V DC, VIN = 3.0V
1) VOUT, 200mV/div, AC
T = 400µs/div
www.national.com
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